Math question of class X.. Cbse very important question.
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Anonymous:
ar will be 217 and perimeter will be 65cm
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Area of rectangle = 2(b*h)
2(21*14)
2*294
588cm²
Area of semicircle = 1/2πr²
22*7*7/7*2
11*7
77cm²
Area of shaded region = 588-77
=511cm²
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